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Q.

A metal crystallizes in face centred cubic lattice with edge length of 450pm. Molar mass of metal is 50gmol-1. Then the density of metal is

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a

2.64 g/cc

b

3.64 g/cc

c

4.64 g/cc

d

2.68 g/cc

answer is B.

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Detailed Solution

d=Z.Ma3.NA=4×50(450)3×10−30×6.023×1023=3.64g/cc
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